HeyGoTo

If you are looking to build your site’s rank in a natural and Google approved method, you know the value of having certain links set to NoFollow. But going back over your site with a fine toothed comb can be a trying and painstaking process. Especially, if you’ve got a lot of content built over the years. With the increasing importance of telling the search engines if they should consider a link worth following, it’s now more important than ever to get a handle on your outbound links.
<blockquote>
Wikipedia – nofollow: 
 nofollow is a value that can be assigned to the rel attribute of an HTML an element to instruct some search engines that the hyperlink should not influence the ranking of the link’s target in the search engine’s index.
</blockquote>
Agencies are often hired to help get it under control. So, whether you are an agency working for clients, or a site owner wanting to avoid the expense of an Agency, the Ultimate SEO NoFollow plugin will allow you to craft the link profile Google, Bing, Yahoo and others are looking for, without breaking the bank. This lightweight plugin will let you setup one or more rules to apply across your site on how to tag the links already on your site, as well as those you will add in the future.
Other typical use cases include links created by 3rd party commenters on blogs, affiliate product links, consulting or agency links, or links the author wishes to point to, but avoid endorsing.
<h4>Example Case Study:</h4>
You’ve been building content over time, including several affiliate links to products. By setting up a “rule” to target the base URL for your affiliate links, you can set the plugin to automatically go find those and add the all-important rel=”nofollow” to links buried on your site in long forgotten (but still active) posts, pages, sidebars and footers.
<h4>Example Case Study:</h4>
You’re an agency that has created websites for dozens of clients over the last 5 years and many of those sites have grown to hundreds or even thousands of pages. Each has a link back to you in the footer. Google has begun to penalize you for those thousands of inbound links.
<h4>Installation Instructions</h4>
Download the zip file from the WordPress repo, or search and install the plugin from the Plugin Add New feature in WordPress.
Once installed you can setup the rule(s) for the turning all footer links to your agency website over to rel=”nofollow” except for the link on the home page. You can also setup just links within a certain HTML tag, class or ID. You can optionally set it to NOT do all links within a class (reverse option).
See the <a href="https://www.heygotomarketing.com/plugins/ultimate-nofollow-seo/" rel="nofollow ugc">plugin site</a> for further examples, instructions and a setup video

Ultimate NoFollow SEO

If you are looking to build your site's rank in a natural and Google approved method, you know the value of having certain links set to NoFollow.

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NOTE : This plugin is translation ready
This plugin will automatically create links from words.
If you add word on master blog, all network wil lhave the replacement else it’s just for one blog.
Based on the exelent plugin automatic seo links from Emilio (http://emilio.aesinformatica.com)
As Emilio said :
Forget to put manually your links, just choose a word and a URL and this plugin will replace all matches in the posts of your blog.
For each link, you can set:
<ul>
<li>Title</li>
<li>Target</li>
<li>Rel</li>
<li>CSS</li>
</ul>

WPMU Automatic Links

This plugin will automatically create links from words.

Ultimate NoFollow SEO vs WPMU Automatic Links